SURFACE COATED CUTTING TOOL
A surface coated cutting tool comprises a base material made of a cemented carbide and a coating. The coating includes an intermediate layer in contact with the base material, and an upper layer formed on the intermediate layer. The uppe...

WO/2018/105035A1

CUTTING TOOL, INSERT HOLDER AND INSERT
Multiple grooves, which are closed on a first end side and are open on a second end side, are provided on the outer circumferential surface of the body of an insert holder, and said body is also provided with a first protrusion that is a...

WO/2018/100849A9

SURFACE-COATED CUTTING TOOL
A surface-coated cutting tool which is provided with a base material and a coating film that covers the surface of the base material. The coating film comprises a super-multilayer structure layer in which layers A and layers B having a c...

WO/2018/100849A1

SURFACE-COATED CUTTING TOOL
A surface-coated cutting tool which is provided with a base material and a coating film that covers the surface of the base material. The coating film comprises a super-multilayer structure layer in which layers A and layers B having a c...

WO/2018/092369A1

SINTERED BODY AND CUTTING TOOL CONTAINING SAME
This sintered body contains cubic boron nitride particles and a binder. The particle size D50 of the cubic boron nitride particles, at which the cumulative value is 50% in an area-based particle size distribution, is more than 0.5 μm bu...

TOOL FOR MACHINING MODIFIED GEAR OF ROV THRUSTER
Disclosed is a tool for machining a modified gear of an ROV thruster, comprising a tool head and a hob provided on the tool head. The hob comprises a plurality of continuously and linearly arranged hob teeth. The height of any of the hob...

WO/2018/079650A1

MAIN SPINDLE UNIT AND MACHINE TOOL
The main spindle unit (30) has a main spindle (31), a front bearing (41), a rear bearing (43), a front case (61) for covering the front bearing (41), and a rear case (71) for covering the rear bearing (43). The front case (61) has a fron...

WO/2018/078964A1

SKIVING CUTTER
A skiving cutter (100) comprises cutting parts (120) in which the tooth traces (L) extend in directions that are inclined with respect to the axial line (Ac) of a base (110). The cutting parts (120) are divided into multiple segment cutt...

SURFACE-COATED CUTTING TOOL
A surface-coated cutting tool which comprises: a substrate that has a rake face and a clearance; and a coating film that covers the surface of the substrate. The substrate is a cBN sintered body or a ceramic sintered body; the coating fi...

WO/2018/070403A1

GEAR MACHINING APPARATUS AND GEAR MACHINING METHOD
A gear machining apparatus 1 forms a gear in a workpiece W by moving a tooth cutting tool 42 relative to the workpiece W in the direction of the rotational axis of the workpiece W while synchronously rotating the tooth cutting tool 42 an...

A METHOD OF MANUFACTURING NEAR-NET SHAPE CROWN WHEEL
Invention relates to a method of producing a crown wheel with near-net shaped as-forged teeth having continuous grain flow lines and having minimal machining allowance. The method of invention comprises the steps of making ring using ham...

WO/2018/051939A1

SURFACE-COATED CUTTING TOOL
Provided is a surface-coated cutting tool exhibiting excellent chipping resistance and wear resistance in intermittent cutting. A surface-coated cutting tool in which a hard coating layer including a TiAlN layer is provided on the surfac...

WO/2018/047735A1

CUTTING TOOL AND METHOD FOR PRODUCING SAME
Disclosed is a cutting tool comprising a base material and a film provided on the base material, wherein: the base material is a cBN sintered compact including greater than or equal to 80 vol% to less than 100 vol% of cBN, and a binding ...

WO/2018/047733A1

CUTTING TOOL AND METHOD FOR PRODUCING SAME
Disclosed is a cutting tool comprising a base material and a film provided on the base material, wherein: the base material is a cBN sintered compact including greater than or equal to 30 vol% to less than 80 vol% of cBN, and a binding m...

WO/2018/047734A1

CUTTING TOOL AND METHOD OF PRODUCING SAME
Disclosed is a cutting tool comprising a base material and a film provided on the base material, wherein: the base material is a cBN sintered compact formed from cBN particles; the film includes a compound layer having the composition Ti...

SURFACE COATED CUTTING TOOL AND MANUFACTURING METHOD THEREOF
This surface coated cutting tool has a rake face and a flank face, is provided with a substrate and a coating formed on said substrate, the substrate includes a cutting blade that connects the rake face and the flank face, and has an oxy...

WO/2018/037648A1

SURFACE COATED CUTTING TOOL AND MANUFACTURING METHOD THEREOF
In a surface coated cutting tool provided with a substrate and a coating formed on the substrate, the substrate is a cemented carbide or cermet, and the surface of the substrate includes a rake face, a flank face, and a cutting edge whic...

WO/2018/037647A1

CUTTING TOOL AND MANUFACTURING METHOD THEREOF
In a cutting tool provided with a substrate, the substrate is a cemented carbide or cermet, the surface of the substrate includes a rake face, a flank face, and a cutting edge which connects the rake face and the flank face, and in the s...

GEAR MACHINING METHOD AND MACHINING APPARATUS
A gear machining method comprises a finishing step that divides the tooth surfaces (82) of a combined use gear into multiple portions in the face width direction and finishes each of the divided portions separately with a shaving cutter....

HONING METHOD WITH CROSS-GRINDING FOR GEAR WHEELS
The present invention relates to a method for creating a surface structure on a gear wheel in a honing process, in which at least one honing tool is moved along the gear wheel in a first direction using a first crossed axes angle, and in...

HOBBING TOOL WITH REPLACEABLE CUTTING INSERTS
A hobbing tool (21) includes a hob body (23) including at least one axially extending slot (25), and at least one cassette (27) removably disposed in the at least one slot (25). The at least one cassette (27) includes at least one seatin...

WO/2018/003721A1

MACHINING JIG AND PROCESSING METHOD
A machining jig that holds a workpiece, which has projections protruding in the radial direction on the outer circumference of a cylindrical section and extending in a direction intersecting the circumferential direction, with respect to...

WO/2017/217012A1

SURFACE-COATED CUTTING TOOL
This surface-coated cutting tool is provided with a substrate and a coating which is disposed on the substrate, and which is formed so as to cover at least a portion of a flank face. The coating includes an inner layer and an outer layer...

WO/2017/203738A9

SINTERED BODY AND CUTTING TOOL CONTAINING SAME
This sintered body comprises a first material and a second material, wherein the first material is partially-stabilized ZrO2 in which 5-90 vol% of Al2O3 with respect to all the first material is dispersed at crystal grain boundaries or i...

WO/2017/203738A1

SINTERED BODY AND CUTTING TOOL CONTAINING SAME
This sintered body comprises a first material and a second material, wherein the first material is partially-stabilized ZrO2 in which 5-90 vol% of Al2O3 with respect to all the first material is dispersed at crystal grain boundaries or i...

WO/2017/199752A1

TOOL
Provided is a tool in which at least the cutting edge has a lower member comprising a cemented carbide, an upper member formed closer to the surface than the lower member and comprising a sintered body, and an intermediate layer formed b...

WO/2017/201385A1

TOPLAND CHAMFERING OF GEARS
A method wherein a cutting or grinding chamfering tool (25) is guided along the face width of a gear (12, 23, 52) through one tooth slot (8) (e.g. from heel to toe) while it contacts the topland corners (10, 1 1 ) of the respective conca...

WO/2017/195829A1

BROACH
In this broach, a cutting edge section (4) in which multiple cutting edges (5) protrude and are disposed in the longitudinal direction of a shaft-shaped broach body (1) is provided on the outer circumference of the broach body (1). In sa...

WO/2017/194251A1

GEAR MACHINING DEVICE WITH CENTERING DEVICE
The invention relates to a device for machining workpieces with precut teeth, having a workpiece support and at least one workpiece spindle arranged on the workpiece support for clamping a workpiece (8). A centering device (20.1) for the...

CUTTER FOR SKIVING AND GEAR MANUFACTURING METHOD USING SAME
Provided is a cutter for skiving, wherein the tooth heights of cutting parts (A1-A3, B1-B3, C1-C3) aligned in the longitudinal direction (Dt) of tooth grooves are set so as to increase from the downstream side toward the upstream side in...

WO/2017/154056A1

GEAR GRINDING MACHINE
Provided is a gear grinding machine for grinding a gear by causing a gear that is to be ground and a grindstone to rotate in a meshed state, wherein the gear grinding machine makes it possible to suppress the generation of waviness durin...